5, 20, 80, 320, 1280, 5120, 20480, 81920, 327680, 1310720, 5242880, 20971520
The 12th term would be 20,971,520
Everything is being multiplied by 4 each time
C=(-10;5). If you want an explanation I would be happy to explain it
C. Median because there is an outlier